Lake Hunnington Reservoir Report

Last Updated: December 13, 2025

Lake Hunnington, located in Scott County, Iowa, is a private recreational body of water that was completed in 1971 for purposes including fire protection, stock maintenance, and small fish pond activities.


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Summary

With a dam height of 35 feet and a storage capacity of 183 acre-feet, this earth dam structure serves as an important water resource for the local community. The lake covers a surface area of 9.8 acres and has a drainage area of 0.35 square miles, making it a valuable asset for both water recreation and conservation efforts.

Managed by the Iowa Department of Natural Resources, Lake Hunnington is subject to state regulations for inspection, enforcement, and permitting to ensure its safety and sustainability. The dam's condition has been assessed as fair, with a significant hazard potential due to its size and location. Despite these risks, the lake provides a moderate level of water management measures and risk assessment to mitigate potential issues. Overall, Lake Hunnington offers a picturesque location for outdoor enthusiasts and climate advocates to appreciate and protect for future generations.

Situated alongside the TR-Martins Creek in the city of Mc Causland, Lake Hunnington is a tranquil oasis for those seeking recreational activities such as fishing, boating, and wildlife observation. With its uncontrolled spillway and soil foundation, the lake embodies a harmonious blend of natural beauty and human engineering. As climate change continues to impact water resources, Lake Hunnington stands as a reminder of the importance of sustainable water management practices to preserve and protect our precious natural landscapes.

Year Completed

1971

Dam Length

470

Dam Height

35

River Or Stream

TR-MARTINS CREEK

Primary Dam Type

Earth

Surface Area

9.8

Drainage Area

0.35

Nid Storage

183

Hazard Potential

Significant

Foundations

Soil

Nid Height

35
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.